Backfill Zones Sample Clauses

Backfill Zones. Each backfill zone shall extend the full width of the trench bottom.
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Backfill Zones. On completion of the pipe laying operations in any section, for a length of about 100 m and while further work is still in progress, backfilling of trenches shall be started by the Contractor with a view to restricting the length of open trenches. For the purpose of backfilling the depth of the trench shall be considered as divided into the following three zones, starting from the bottom of the trench to its top. Zone A: From the bottom of the pipe to the level of the center line of the pipe. Zone B: From the level of the center line of the pipeline to a level 300 mm above the top of the pipe. Zone C: From a level 300 mm above the top of the pipe to the top of the trench. Special care shall be taken during all backfilling operations to avoid damage to the pipe coating or displacement of the pipe. Backfilling in Zone A shall be done with selected approved material available from excavation, well graded sand, fine gravel or other approved material placed in layers not exceeding 150 mm. The backfilling material shall be deposited in the trench for its full width on each side of the pipe, fittings and appurtenances simultaneously, and shall be compacted so as to achieve 90 to 95% modified xxxxxxx density. Backfill immediately adjacent to the pipe shall be carefully placed and compacted using suitably shaped hand tampers. Backfill in the remaining space up to the sides of the trench shall be compacted by mechanical means. Backfilling in Zone B shall be done with selected approved material available from excavation, well graded sand, fine gravel or other approved material placed in layers of 150 mm. The back filling material shall be deposited in the trench for its full width of each side of the pipe, fittings and appurtenances simultaneously. The column of backfill along the sides of the pipe shall be compacted by mechanical means to achieve 90 to 95% modified xxxxxxx density, while the area immediately above the crown of the pipe shall be compacted by hand to achieve 90% modified xxxxxxx density. Care shall be taken to ensure that mechanical compacting equipment is not used in the zone from the top of the pipe up to 300 mm above the crown of the pipe. Backfilling in Zone C shall be done with excavated material which is suitable for backfilling with the prior approval of the Employer’s Representative. The trench shall be backfilled with selected excavated material free from topsoil and vegetation, or boulders, clods of earth or stones larger than 200 mm in size...
Sample 1

Related to Backfill Zones

  • Fill, Backfill and Landscaping No soil found on Site, or transported to the Site from remote locations, which contains debris or waste or Hazardous Materials shall be used for fill, backfill or landscaping topsoil.

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  • Power System Stabilizers The Developer shall procure, install, maintain and operate Power System Stabilizers in accordance with the requirements identified in the Interconnection Studies conducted for Developer’s Large Generating Facility. NYISO and Connecting Transmission Owner reserve the right to reasonably establish minimum acceptable settings for any installed Power System Stabilizers, subject to the design and operating limitations of the Large Generating Facility. If the Large Generating Facility’s Power System Stabilizers are removed from service or not capable of automatic operation, the Developer shall immediately notify the Connecting Transmission Owner and NYISO. The requirements of this paragraph shall not apply to wind generators.

  • Commissioning Commissioning tests of the Interconnection Customer's installed equipment shall be performed pursuant to applicable codes and standards. If the Interconnection Customer is not proceeding under Section 2.3.2, the Utility must be given at least ten (10) Business Days written notice, or as otherwise mutually agreed to by the Parties, of the tests and may be present to witness the commissioning tests.

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  • System Logging The system must maintain an automated audit trail which can 20 identify the user or system process which initiates a request for PHI COUNTY discloses to 21 CONTRACTOR or CONTRACTOR creates, receives, maintains, or transmits on behalf of COUNTY, 22 or which alters such PHI. The audit trail must be date and time stamped, must log both successful and 23 failed accesses, must be read only, and must be restricted to authorized users. If such PHI is stored in a 24 database, database logging functionality must be enabled. Audit trail data must be archived for at least 3 25 years after occurrence.

  • Built-up Area The built-up area for the Designated Apartment or any other Unit shall mean the Carpet Area of such Unit and Balcony area and 50% (fifty percent) of the area covered by those external walls which are common between such Unit/Balcony and any other Unit/Balcony and the area covered by all other external walls of the such Unit/Balcony.

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